aman-kassa-flutter/lib/core/services/DataService.dart

import 'dart:convert';

import 'package:aman_kassa_flutter/core/base/base_service.dart';
import 'package:aman_kassa_flutter/core/entity/Category.dart';
import 'package:aman_kassa_flutter/core/entity/Goods.dart';
import 'package:aman_kassa_flutter/core/entity/Service.dart';
import 'package:aman_kassa_flutter/core/locator.dart';
import 'package:aman_kassa_flutter/core/models/Response.dart';
import 'package:aman_kassa_flutter/core/services/DbService.dart';

import 'ApiService.dart';

class DataService extends BaseService {
  final ApiService _api = locator<ApiService>();
  final DbService _db = locator<DbService>();

  Future<List<Category>> getCategoriesByParentId ( {int parentId} ) async {
    List<Map<String, dynamic>>  list = await _db.queryRowsWithWhere(Category_tableName, '$Category_columnParentIn = ?', [parentId ?? 0 ]);
    return list.map((e) => Category.fromMap(e)).toList();
  }

  Future<List<Good>> getGoodsByCategoryId ( {int categoryId} ) async {
    List<Map<String, dynamic>>  list = await _db.queryRowsWithWhere(Goog_tableName, '$Goog_columnCategoryId  = ?', [categoryId ?? 0]);
    return list.map((e) => Good.fromMap(e)).toList();
  }

  Future<bool> getDataFromServer(String token) async {
    try {

      Response<dynamic> goods = await _api.getGoodsFromServer(token);
      Response<dynamic> categories = await _api.getCategoryFromServer(token);
      Response<dynamic> services = await _api.getServiceFromServer(token);
      await _db.deleteAll(Goog_tableName);
      await _db.deleteAll(Category_tableName);
      await _db.deleteAll(Service_tableName);
      log.i('All tables cleaned');
      for (var key in goods.body.keys) {
        print(goods.body[key]);
        Good row = Good.fromMap(goods.body[key]);
        _db.insert(Goog_tableName,row.toMap());
      }
      log.i('Inserted ${goods.body.length} to table $Goog_tableName');

      for (var el in categories.body) {
        print(el);
        Category row = Category.fromMap(el);
        _db.insert(Category_tableName,row.toMap());
      }
      log.i('Inserted ${categories.body.length} to table $Category_tableName');

      for (var key in services.body.keys) {
        print(services.body[key]);
        Service row = Service.fromMap(services.body[key]);
        _db.insert(Service_tableName,row.toMap());
      }
      log.i('Inserted ${services.body.length} to table $Service_tableName');

      return true;
    } catch (e) {
      print(e);
      return false;
    }
  }
}